Boomi Cloud API Management Developer Blog

Based on feedback and to be in line with the OAuth 2.0 specification, Mashery has made a small but important change to the way I/O Docs makes requests for OAuth access tokens. 

Who's affected:  Depending on your OAuth 2 access token provider's implementation, you may need to modify it to receive the token request credentials in the Authorization header. This is the compliant way to receive credentials and will successfully work with I/O Docs. For customers using Mashery OAuth Accelerator, no change is required.

Issue: I/O Docs was incorrectly passing credentials in the POST body (URL encoded) and the Header. This is not in compliance of the spec and will  result in a 400 (invalid_request) in the response from the authorization server. 

Whats changed: I/O Docs will send the client ID/secret pair in the Authorization header. This change is necessary to comply with OAuth2 spec RFC, ttp://tools.ietf.org/html/rfc6749#section-5.2

Necessary Action: Modify your authorization code to receive the token request credentials in the Authorization header. This is the compliant way to receive credentials and will successfully work with I/O Docs

If you're impacted by this change, we appreciate your time to make the minor modification on your end. We'll continue to make improvements to I/O Docs based on your feedback.